Department of Computer Science AGH and IBM Software Laboratory in Krakow invite to Krakow Quantum Informatics Seminar (KQIS)
•    understand and discuss current problems in quantum informatics,
•    discuss new quantum computing technologies,
•    exchange ideas and research results,
•    integrate information across different research teams,
•    build a community around quantum informatics.
Venue:  Centrum Informatyki (D17) ul. Kawiory 21, 30-055 Kraków, room 1.19

Tuesday, 10th of March, 2020, 9:30-11:00

Erik Aurell, KTH – Royal Institute of Technology, AlbaNova University Center, Stockholm, Sweden and Faculty of Physics, Astronomy and Applied Computer Science,Jagiellonian University

Topic: Quantum black holes as solvents



Most of the entropy in the current universe is believed to be in the form of Bekenstein-Hawking (BH) entropy of super-massive black holes. This entropy is proportional to the area of the horizon in units of Planck area, or, alternatively, proportional to the square of the mass of the black hole in units of Planck mass.

In the "strong interpretation" BH entropy is assumed to satisfy Boltzmann's formula S = log N. The question then arises what is the huge phase space volume N available to the universe after a gravitational collapse, but not before.

Inspired by recent proposals for table-top experiments to show (or disprove) that gravity acts quantum-mechanically, I will discuss the possibility that N can be a massive entanglement of the matter in black hole with its own gravitational field, and some consequences of such an idea.

This is joint work Michal Eckstein and Pawel Horodecki, available as [arXiv:1912.08607].



  • 4 years, 3 months ago